Counties in Louisiana by annual precipitation

Livingston Parish had the highest annual precipitation of 64 counties in 2021, at 95.89 inches. Caldwell Parish had the lowest, at 43.95 inches. The median was 66.38 inches and the figure for Louisiana was 66.28 inches. Source: NOAA National Centers for Environmental Information.

Highest95.89Livingston Parish

Lowest43.95Caldwell Parish

Median66.3864 counties

Louisiana66.28History

Map of counties, 2021

Under 50
50 to 55
55 to 66
66 to 76
76 to 88
88 and over

inches, 2021. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2021 inches	Change on 2020
1	Livingston Parish	95.89	+39.8%
2	Tangipahoa Parish	93.42	+40.1%
3	St. Tammany Parish	92.38	+40.4%
4	Jefferson Parish	91.04	+36.6%
5	St. John the Baptist Parish	90.68	+37.5%
6	Washington Parish	90.08	+28%
7	St. Bernard Parish	89.89	+43.4%
8	Ascension Parish	89.8	+35.8%
9	St. Charles Parish	89.29	+34.7%
10	Plaquemines Parish	88.95	+43.8%
11	Orleans Parish	88.91	+39.9%
12	St. James Parish	86.7	+44.4%
13	St. Helena Parish	86.69	+35.2%
14	East Baton Rouge Parish	85.56	+33.3%
15	Lafourche Parish	85.27	+51.8%
16	East Feliciana Parish	83.51	+35.1%
17	West Baton Rouge Parish	82.42	+29.8%
18	Assumption Parish	82.4	+50.1%
19	Iberville Parish	81.77	+26.9%
20	West Feliciana Parish	78.23	+28.5%
21	Terrebonne Parish	77.16	+58.7%
22	Pointe Coupee Parish	76.19	+21.9%
23	St. Martin Parish	73.79	+16.6%
24	Avoyelles Parish	73.66	+5.5%
25	St. Landry Parish	72.83	+7.9%
26	Evangeline Parish	72.58	+12.5%
27	St. Mary Parish	72.39	+27.2%
28	Lafayette Parish	72.13	+9.5%
29	Iberia Parish	69.92	+11.1%
30	Acadia Parish	67.86	+8.5%
31	Vernon Parish	67.2	-9.3%
32	Cameron Parish	66.77	+15.6%
33	Vermilion Parish	65.99	+10.9%
34	Rapides Parish	64.93	-15.8%
35	Calcasieu Parish	64.85	+11.3%
36	Jefferson Davis Parish	63.9	+10.5%
37	Beauregard Parish	63.64	+6%
38	Allen Parish	61.8	+12.4%
39	Concordia Parish	59.68	-13.5%
40	Grant Parish	59.03	-26.4%
41	Sabine Parish	56.07	-23.4%
42	LaSalle Parish	55.38	-26.8%
43	Catahoula Parish	54.69	-27.3%
44	Claiborne Parish	54.53	-22.1%
45	Natchitoches Parish	54.44	-31%
46	Tensas Parish	51.88	-31.1%
47	Winn Parish	51.51	-34.6%
48	Webster Parish	51.41	-24.7%
49	Caddo Parish	51.24	-20%
50	Lincoln Parish	50.78	-27.5%
51	Bossier Parish	50.34	-25.8%
52	De Soto Parish	50.28	-24.5%
53	Bienville Parish	50.21	-28.3%
54	Union Parish	49.58	-30.7%
55	Jackson Parish	48.61	-34.2%
56	Red River Parish	48.52	-31.6%
57	West Carroll Parish	47.22	-35%
58	East Carroll Parish	47.07	-34.9%
59	Madison Parish	46.51	-36.8%
60	Franklin Parish	46.05	-41.9%
61	Ouachita Parish	45.7	-37.1%
62	Morehouse Parish	45.29	-38.3%
63	Richland Parish	45.21	-40.8%
64	Caldwell Parish	43.95	-45.4%

Other periods

About this ranking

Total precipitation from January to December, in inches: rain plus the water content of snow and other frozen precipitation. NOAA computes it from its climate divisional dataset (nClimDiv): station readings interpolated onto a 5 km grid and averaged over the area.

Values are area averages, not the reading at one weather station. NOAA revises the last two years every month.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December precipitation, counties (Counties in Louisiana by annual precipitation, 2021) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping

MLA 9

NOAA Climate at a Glance, January to December precipitation, counties, Counties in Louisiana by annual precipitation, 2021. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Invokely, https://invokely.ai/rankings/annual-precipitation/louisiana-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December precipitation, counties. Counties in Louisiana by annual precipitation, 2021. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Also distributed by Invokely, https://invokely.ai/rankings/annual-precipitation/louisiana-counties?period=2021.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Louisiana by annual precipitation, 2021 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/annual-precipitation/louisiana-counties?period=2021 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_louisiana_by_2021,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Louisiana by annual precipitation, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/louisiana-counties?period=2021. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December precipitation, counties: Counties in Louisiana by annual precipitation, 2021
PY  - 2026
DA  - 2026/10/06
PB  - NOAA National Centers for Environmental Information
DB  - Invokely
UR  - https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
L2  - https://invokely.ai/rankings/annual-precipitation/louisiana-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/louisiana-counties?period=2021.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest annual precipitation?

Livingston Parish, with 95.89 inches in 2021, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Caldwell Parish, with 43.95 inches in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.